Pith Number

pith:WA3DOUG3

pith:2001:WA3DOUG3AZEDAIGOKLB2DXDJ66

not attested not anchored not stored refs pending

Two-qubit Projective Measurements are Universal for Quantum Computation

D. W. Leung (IBM TJ Watson Research Center)

arxiv:quant-ph/0111122 v2 · 2001-11-23 · quant-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WA3DOUG3AZEDAIGOKLB2DXDJ66}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

A resource- and computationally-efficient protocol for multipartite entanglement distribution in Bell-pair networks

Receipt and verification

First computed	2026-07-04T14:45:44.240930Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0363750db06483020ce52c3a1dc69f7a00da9169027a65c7ddefd16231c4ec5

Aliases

arxiv: quant-ph/0111122 · arxiv_version: quant-ph/0111122v2 · doi: 10.48550/arxiv.quant-ph/0111122 · pith_short_12: WA3DOUG3AZED · pith_short_16: WA3DOUG3AZEDAIGO · pith_short_8: WA3DOUG3

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/WA3DOUG3AZEDAIGOKLB2DXDJ66 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: b0363750db06483020ce52c3a1dc69f7a00da9169027a65c7ddefd16231c4ec5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6a9818e41755c45b355cbc9fabc2249e9859304ea0e991944485c661e5215ac",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2001-11-23T04:36:03Z",
    "title_canon_sha256": "8842f26d89b6cadae7a140913c66886738f4734bcd8fa3ace05047c5ce80364e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0111122",
    "kind": "arxiv",
    "version": 2
  }
}